P89crd2Hbp model does not offer you the luxury of changing the clock mode ( 6clk or 12clk). You should use the non-H version for that.

And in the meanwhile you don't have to worry about the 6clk mode - just change the crystal from 11.0592 MHz to 6 MHz . ( Note however this may impact any Baud rate that you are generating. Corrections may be required for that. )

Raghu